Perforating-machine.



N .746,274. PATENTBD DEG.8,1903. A. M. BOVIER.

PBRPORATING MACHINE.

APPLICATION FILED EAR. 2, 1903.

H0 MODEL.

WITNESSES: Y I NVENTOR ATTORNEY Patented December 8, 1903.

PATENT OFFICE.

ARCHIE M. BOVI-ER, OF ELM IRA, NEW YORK.

PERFORATING-MACHIYNE.

SPECIFICATION forming part of Letters Patent 1\T 0."7 46,'274, datedDecember 8, 190 3.

I D 7 Application filed March 2, 1903. Serial No. 146,660. (No model.) 7

To all whom it may concern.-

Be it known that I, ARCHIE M. BOVIER, a citizen of the United States,residing at Elmira, in the county of Ohemung and State of New York, haveinvented a new and useful Improvement .in Perforating Machines, of whichthe following is a specification.

Myinvention relates toim provements in the form of the perforatingblades or attachments used in machines for preparing writing pads,tablets, and the like, and has to do more particularly with suchattachments as are applied to web-printing presses upon which areprinted the leaves which go to make up the manifolding-salespads now ingeneral use by merchants throughout the country. Heretofdre it has beencustomary to separate the leaves of such pads or tablets from theirstubs or from other adjoining leaves by perforate lines regardless ofhow the perforating-cuts will run with respect to the edges of thefinished leaves, and much trouble is experienced when separating theleaves from the stubs or from one another because the paperis left wholeat the end of the perforate line and the pull exerted upon a leaf toseparate it will, as like as not, tear the leaf itself or the adjacentleaf, and much care and some little loss of time must be expended inbreaking the'leaf away along the perforate line.

It is my object to so arrange the perforating blade or blades that eachperforate line in the finished pad or tablet will be terminated at eachend by a cutextending through the edge of the paper. By this initial cutinto the paper at each endof the line, no matter in which direction thepaper may be pulled when separating a leaf, the breaking away will takeplace without fail upon the perforated line.

I accomplish my object by means of a perforating-blade formed asillustrated in the accompanying drawings, in which Figure 1 represents aside elevation of a part of a perforatingattachment containing abladeembodying my improvements; Fig. 2, a plan view of the counterpart or diewhich receives the cutting edge of the blade, and Fig. 3 a section of aweb of paper which has been passed through such a perforator.

A represents the perforating-blade, which is shown as attached to across-bar, by which it is secured to one of the rolls or"revolvingframes of the perforatingattachment ofawebprinting press or like machinein a ,usual manner. The edge of this blade is divided up into a seriesof teeth 0, interspersed between short knives .B, the position anddistance apart of the knives B depending upon the width of the web ofpaper to be operated upon and upon the width of the sections into whichsaid web is subsequently to be divided. D represents the counterpart orfemale member of the attachment, which is secured to the other roll orrevolving frame of such attachment. This counterpart member is providedwith the long openings E, to receive the knives B, and the shorteropenings F, corresponding with the shape of the perforating-teeth O. G

represents a section of a web of paper which has been passed throughsuch a perforating attachment, and it will'be seen that the perforatedlines consist of a series of perforations I, corresponding with the formof the teeth 0, separated by the cuts H, which are so positioned thatwhen the web is subsequently cut into sections on the lines J each ofthe perforated lines on the separated strips or leaves will beterminated at each end by acut extending through the edge of the paper.

It will be understood that the perforating rolls or frames will beprovided with as many of these blades as may be required to form theperforate lines at the proper spacings as the web passes through theperforator and that the perforating-teeth may be formed in any desiredshape, and it will be further understood that, such a blade or bladesmay be applied in dilferent ways to different forms of perforatingattachments or machines without departing from the spirit of myinvention. There may be a knife at each end of the perforating row ofteeth, or there may be a number of interspaced knives, dependent upon.

the number of sections or stripsinto which a web of paper or a sheet ofpaper is subsequently to be divided after passing through theperforating process.

Having thus described myimprovements, what I claim as myinvention, anddesire to secure by Letters Patent, is-

1. A perforator comprising a series of perforating-teeth andcutting-knives,said knives being placed ateach end of the series and setin alinernent therewith.

2. A perforator comprising a series of perforating-teeth placed betweenand broken into at intervals by cutting knives, said knives being set tocut in the same line with the perforating-teeth.

3. A perforating-blade, the edge of which is in the form of a series ofperforatingteeth and cutting-knives, said knives being placed at eachend of a series of the perforatingteeth, and set in alinennenttherewith.

4:. A blade for perforating attachments for web-machines, for producingwriting pads, tablets and the like, having its edge in the form of aseries of perforating-teeth interspersed with cuttingknives, whereby theleaves or strips of leaves into which the web of paper is subsequentlydivided will have each perforated line terminated at each end by a cutextending through the edge of the paper.

5. A line-perforatorfor preparing the leaves of pads, tablets and thelike consisting of a series of perforating-teeth set betweencutting-knives, and a counterpart or die to receive said teeth andknives.

In testimony whereof I have affixed my signature in presence of twowitnesses.

ARCHIE M. BOVIER.

Witnesses:

CHARLES O. EACKER, M. E. VERBECK.

